Obviously that would be quite the outlier. There is simply no way around it, the greatest player of all-time in soccer has the build of a moderately in shape 12 year old.

Pretty obvious he'd at the very least be an elite goalie had he focused on that his whole life like he did basketball. I'd say given his speed, strength, coordination, conditioning, etc. there's a good chance he could have excelled elsewhere on the field too.

As i said earlier I am sure his training regimen would differ and he would probably be leaner. But in reality when has being tall and jacked ever been a hindrance in sports?